Little Ground-tyrant (Muscisaxicola fluviatilis) - HBW 9, p. 399

Taxonomy: Muscisaxicola fluviatilis P. L. Sclater and Salvin, 1866, lower River Ucayali, Peru. Usually considered closely allied with M. maculirostris; recent phylogenetic work, however, suggests that this species may be more closely related to other taxa (e.g. Muscigralla) than it is to current congeners. Monotypic.